林地化学除草应用技术研究

Study on the Technology for Eliminating Weeds on Forest Land by Chemical Herbicides

使用41％草甘膦、25％威尔柏除草剂和孔径为0.7、1.0mm喷片的低容量和超低容量喷雾,在用于采伐迹地更新、幼林抚育、残次竹林改造、防火线维修上进行化学除草应用技术研究。结果表明,按照本除草剂配方及使用方法,除草率达90％以上,节约成本70％、节省用工80％以上。已在广东省40多个生产单位1333余hm^2林地上推广应用。

Technology on how to use herbicides, such as 41% Roundup and 25% Velpar to eliminate weeds on forest land was studied through low and ultra-low volume spray. The size of spray-plate is 0.7mm and 1.0mm. This kind of technology can be used in regenerated forest after logging, tending in young stands, reform of bamboo groves and preservation of fire-preventing lines and it can save the cost for 70%, save the manual labour for 80%. The extension area in over 40 production units in Guangdong Province has reached over 1 333 ha.